add Versio to README.md and ./dnsapi/README.md

README.md

@@ -321,6 +321,7 @@ You don't have to do anything manually!
 1. acme-dns (https://github.com/joohoi/acme-dns)
 1. TELE3 (https://www.tele3.cz)
 1. EUSERV.EU (https://www.euserv.eu)
+1. Versio (https://versio.nl)
 
 And: 
 

dnsapi/README.md

@@ -897,6 +897,20 @@ acme.sh --issue --dns dns_euserv -d example.com -d *.example.com --insecure
 The `EUSERV_Username` and `EUSERV_Password` will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
 
 Please report any issues to https://github.com/initit/acme.sh or to <github@initit.de>
+## 48. Use Versio.nl API
+
+First you've to add your ip address to the whitelist in your Versio portal. (Account > Versio API)
+Then set your credentials:
+```
+export Versio_Username=[email address]
+export Versio_Password=[password]
+```
+
+Now you can issue your cert:
+```
+acme.sh --issue --dns versio -d example.com -d *.example.com
+```
+
 # Use custom API
 
 If your API is not supported yet, you can write your own DNS API.